Apply the different-entity check as part of the SQL query rather than…

… as part of local resultset filtering (#94)

twine/generate/triggers.c

@@ -79,18 +79,13 @@ spindle_trigger_apply(SPINDLEENTRY *entry)
 	{
 		return 0;
 	}
-	rs = sql_queryf(entry->generate->db, "SELECT \"id\", \"flags\", \"triggerid\" FROM \"triggers\" WHERE \"triggerid\" = %Q", entry->id);
+	rs = sql_queryf(entry->generate->db, "SELECT \"id\", \"flags\", \"triggerid\" FROM \"triggers\" WHERE \"triggerid\" = %Q AND \"triggerid\" <> \"id\"", entry->id);
 	if(!rs)
 	{
 		return -1;
 	}
 	for(; !sql_stmt_eof(rs); sql_stmt_next(rs))
 	{
-		/* Never apply a trigger to the entry itself */
-		if(!strcmp(sql_stmt_str(rs, 0), sql_stmt_str(rs, 2)))
-		{
-			continue;
-		}
 		flags = (int) sql_stmt_long(rs, 1);
 		if(!flags)
 		{